Andrew Pace
Badminton is a racquet sport that uses a shuttlecock, also known as a birdie, during gameplay. The shuttlecock is a high-drag projectile that is constructed from feathers embedded into a rounded cork base. The feathers are usually plucked from the wings of a goose or duck and the number of feathers used in a shuttlecock is said to impact the speed and flexibility of the shuttlecock during the game.
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What You'll Learn
Feathers used: goose or duck
The feathers used in a badminton shuttlecock are typically sourced from goose or duck. The feathers are plucked from the wings of live birds, a method that has been criticised by animal rights activists. The feathers are embedded into a rounded cork base, with the cork covered in thin leather.
Goose feathers are considered premium, with thicker bristles that offer better flight quality and durability. They are the preferred choice for elite players and are used in tournaments and leagues. Goose feathers also have a groove in the bone of the feather, which can indicate the speed of the shuttle.
Duck feathers are another common option for shuttlecocks and are used by some manufacturers as a more affordable alternative to goose feathers. They are suitable for beginners as they are cheaper and more durable than goose feathers.
The choice between goose and duck feathers depends on the player's skill level and budget. Feathers provide a higher aerodynamic lift and a more natural flight than synthetic shuttlecocks, which tend to have inferior flight paths and control. Feathers are also more expensive and less durable than synthetic alternatives, with feather shuttlecocks needing to be replaced every three to four games.
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Number of feathers: 14 or 16
A shuttlecock, also known as a birdie, is a projectile used in the sport of badminton. It has an open conical shape formed by overlapping feathers embedded into a rounded cork base. The cork is covered with thin leather. The feathers used in a shuttlecock are sourced from the wings of a goose or duck. The number of feathers used in a shuttlecock is typically 16, although some sources mention that there are variations with 14 feathers. The feathers are chosen from the wingtips, and the first three feathers are skipped based on length. The subsequent seven feathers are used for high-end shuttlecocks. Feathers beyond this range might be used for practice or American shuttlecocks.
The feathers are carefully selected and treated to ensure optimal performance. They are bleached to achieve a pure white colour, and then categorized based on curvature, weight, and length to determine their capability for spin and speed. The feathers from the left or right wing of the bird are used, and it is considered preferable to use feathers from only one wing type in each shuttlecock for consistent flight properties. The feathers from different wings have distinct shapes, which can impact the shuttlecock's flight characteristics.
The number of feathers in a shuttlecock can vary slightly, with some sources mentioning 14 or 16 feathers. The Badminton World Federation (BWF) mentions in its shuttlecock manufacturing certification standards that the shuttlecock should have 16 feathers fixed in the base. This standard aims to ensure consistent performance and quality across different shuttlecocks used in the sport.
The choice between 14 and 16 feathers in a shuttlecock may depend on various factors, including the manufacturer's preferences, availability of feathers, and the intended playing level. The number of feathers can impact the shuttlecock's durability, flight characteristics, and cost. Shuttlecocks with 16 feathers might offer better performance and consistency, while those with 14 feathers could be more affordable and suitable for beginners or practice sessions.
In summary, the number of feathers in a badminton shuttlecock is typically 16, although variations with 14 feathers also exist. The choice between 14 and 16 feathers considers factors such as performance, durability, cost, and playing level, with 16 feathers being the standard specified by the Badminton World Federation for competitive play.
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Feather placement: cork base
A feathered shuttlecock is made up of 16 or so overlapping feathers, usually plucked from the wings of a goose or duck, and embedded into a rounded cork base. The cork is covered with thin leather. The feathers are attached to the base with a dual layer of high-quality thread to form a dense and sturdy coil. The base can also be made with composite cork or hybrid cork.
To ensure satisfactory flight properties, it is considered preferable to use feathers from either the right or left wing only in each shuttlecock, and not mix feathers from different wings, as the feathers from different wings are shaped differently. The feathers are trimmed using iron shears and then knotted with thread interspersed with double twists between shafts to bind them.
The rounded cork base is made from natural cork, composite cork, or hybrid cork. Natural cork is made from a single piece of natural cork, while composite cork is made by sandwiching polyurethane between two pieces of cork. The hybrid cork is a combination of natural cork and other materials.
The feathered shuttlecock has a constant drag coefficient and can reach speeds of over 565 km/h (351 mph). It is preferred by intermediate to professional players as it offers better control and an optimal flight path. However, feather shuttlecocks are not long-lasting due to the natural feathers, which can be damaged easily.
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Feather source: left or right wing
A shuttlecock, also called a birdie, is a high-drag projectile used in the sport of badminton. It has an open conical shape formed by 16 overlapping feathers, usually from the left or right wing of a goose or duck, embedded into a rounded cork base. The feathers are plucked from the wings of a live goose or duck, a method that has been deemed cruel by animal rights activists.
The feathers from the left and right wings of a goose or duck are shaped differently. The left-wing feathers of a goose are curved differently from the right-wing feathers. If you mix them up and use them in a single shuttlecock, it will not spin but wobble. Therefore, to ensure satisfactory flight properties, it is considered preferable to use feathers from either the right or the left wing only in each shuttlecock.
The feathers used in a shuttlecock are chosen from the wing, starting at the tip. The first three feathers are skipped based on length, while the next seven are used for high-end shuttlecocks. Feathers beyond this range might find a spot on a practice or American shuttle. The feathers are then categorized by their curvature, weight, and length to determine their capability for spin and speed.
The feathers are brittle and break easily, and shuttlecocks often need to be replaced several times during a game. For this reason, synthetic shuttlecocks have been developed to replace feathers with a plastic skirt. Synthetic shuttlecocks are cheaper and more durable, so they are usually used by novices, schools, and clubs for practice. However, they have bad in-flight stability. On the other hand, feather shuttlecocks are preferred by experienced and skillful players and are used in serious tournaments or leagues.
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Feather selection: based on curvature, weight and length
The feathers used in a shuttlecock are chosen from the wing, starting at the tip. The first three feathers are skipped based on length, while the next seven are used for high-end shuttlecocks. Feathers beyond this range might be used in practice shuttlecocks. These feathers are then categorized by their curvature, weight, and length to determine their capability for spin and speed.
The curvature of feathers is important in manufacturing shuttlecocks with proper spin during play to reduce wobbling. The feathers used in a shuttlecock are typically sourced from goose or duck wings, with goose feathers being the premium option. The feathers from different wings are shaped differently, with goose wings differing in their curvature. The feathers from the left or right wing of a goose or duck are used, with a preference for feathers from the same wing in each shuttlecock. This is because the feathers from different wings are shaped differently, which can impact the flight properties of the shuttlecock.
The length of the feathers is also important, with the Badminton World Federation (BWF) specifying that the shuttlecock should have 16 feathers of the same length fixed into the base. These feathers are typically 65mm in skirt diameter and result in a total shuttlecock length of approximately 85mm. The length of the feathers impacts the overall length of the shuttlecock and its flight characteristics.
The weight of the feathers is another important factor, as it affects the overall weight of the shuttlecock. A regulation standard shuttlecock weighs around 4.75 to 5.50 grams, with some premium goose feather shuttlecocks weighing around 5.2 grams. The weight of the shuttlecock impacts its flight characteristics and is chosen to compensate for local atmospheric conditions, such as humidity and height above sea level.
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Frequently asked questions
There are 16 feathers in a badminton shuttlecock.
The feathers used are typically goose or duck feathers, with goose being the preferred choice for elite players.
Extensive studies have shown that 16 feathers create the best drag, spin, and flight.
